Window-screen.



H. A. ELDREDGE.

WINDOW SCREEN.

APPLICATION FILED JAN. 5, I916.

Patented Nov. 7, 1916.

WTTE

HAROLD A. ELDREDGE, OF NEWBURYPOET, T-EASSACHUSETTS.

WINDOW-SCREEN.

Application filed January 5, 1916.

To all whom it may concern Be it known that I, HAROLD A. ELDREDGE, citizen of the United States, residing at Newburyport, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Vindow-Screens, of which the following is av specification.

This invention relates to a novel improvement in window screens, and has special reference to screens of that type which are adjustable to fit window frames of varying width.

Primarily, the invention has in view a screen having a novel sliding frame construction whereby the same may be readily collapsed or extended to suit the size of the window and which. permits of the use of friction reducing elements in such a manner that the same are housed and protected, and also concealed from view.

Another object of the invention is to provide a screen having a metal frame which is not susceptible of warping or swelling in damp weather, or when wet from rain or the like, thus providing a sectional screen that possesses a maximum efiiciency under all service conditions. This feature combined with the novel friction reducing feature above set forth provides for the easy manipulation or sliding movement of the screen section, thus eliminating binding or sticking that usually makes screens of this type diflicult to operate.

A further object of the invention is to provide a strong durable screen that is easily and economically manufactured and susceptible of a neat, serviceable, and attractive commercial embodiment.

lVith the above and other objects in view which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

A preferred and practical embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is any elevation of my improved screen construction. Fig. '2 is a vertical sectional view thereof on the line 2-2 of Fig. 1 showing the character of the frame parts. Fig. 3 is a horizontal sectional view on the line 3-8 of Fig. 1. Fig. 4 is a detail view of one form of means for prevent- Specification of Letters Patent.

Patented Nov. *7, 1916.

Serial No. 70,486.

ing the balls from falling out when both sections are extended to their limit.

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

In carrying out the present invention, it is proposed to utilize an all metallic screen frame which preferably includes the telescoping frame sections 1 and 2 which are slidably interlocked and capable of being adjusted to fit any width of window frame.

Referring to the novel features of the screen section 1, it will be observed that the same essentially includes a hollow upright post 3 having suitable means for securing one edge of the wire mesh M, and also having connected to its top and bottom corners, in any suitable manner, the top and bottom casing bars 5 and 6 respectively. These bars are preferably of tubular formation, and may be of rectangular cross section as shown, and have in the side Walls thereof which face each other a longitudinal slot 7. Along one edge of this sl'ot each bar is provided with suitable screen securing means 8, which cooperates with the means 4 on the vertical bar 8 to support .the wire mesh M, which latter is preferably provided at its raw or cut edge with a suitable edge binding or covering 9.

As will be clear from the drawings, the bars 5 and (3 of the screen section 1 are adapted to telescopically receive the top and bottom bars 10 and 11 respectively of the section *2. These bars are also of channeled formation, and are preferably substantially U-shaped in cross section, and with respect to each other bear a reversed relation, so that the open side thereof faces the inside face of the bottom wall of the inclosed casing bars 1 and to thereby provide a complete housing for the friction reducing elements or balls 12 which are caged therebetween. This section 2 also includes a wire mesh M which is secured to the vertical bar 13 as indicated at 14, and is also secured to the top and bottom bars 10 and 11 respectively as shown at 15. Like the mesh or screen M, the raw edge of the mesh M is also provided with a protecting edge binding 16. In connection with the mesh M of the section 2, it will be observed that the same is secured to the bars 10 and 11 by the beading 15 in such a way that the latter may freely slide in the longitudinal slots 7 of the bars 5 and G, as clearly shown in Fig.

Thus, it will be apparent that the screen sections 1 and 2 may be relatively shifted with ease and facility to suit the size of the escoped within the section 1 to vary the latoral dimensions of the screen, with ease and facility, owing to the presence of the balls 12 caged between the channeled bars of the section 2 and the bottom of the casing bars of the section 1. As the telescoping parts are made of metal they will not be adected by dampness or like weather conditions, and with the aid of the balls 12 will freely slide at all times, thus eliminating much of the inconvenience incident to screens of this type no in general use. The present construction also provides for effectually housing and concealing the friction reducing balls, thereby preventing their loss and adding to the practicability and usefulness of the invention, and in order to provide against any of the balls being withdrawn from the bars 5 and {3 when the sections are extended to their limit the said bars may be provided with any suitable means for this purpose, as for instance, by a tongue 17 struck up from the bottom wall of the bars, as shown in Fig.

l, or equivalent means. 7

'VVithout further description, it is thought that the many features and advantages of the present invention will be readily apparent, and it will also be understood that various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or scope of the appended claims.

Copies of this patent may be obtained for lion including I claim: 7

l. A window screen construction including telescoping sections, one of said sections comprising a frame having top and bottom casing bars provided with slots and carrying a screen, and the other of said sections comprising a frame having reversely disposed channeled top and bottom bars slidable in the casing bars and also carrying a screen which is adapted to slidably overlap with the screen of the other section by working in the slots of the casing bars, and friction reducing balls between, the channeled bars and easing bars.

2. in exten ble window screen construcdable frame sections, one of said sections having hollow top and bottom casing bars provided with slots opening toward each other, and a screen carried by said section 2 one side of said slots, the other of said se (ions having reversely disposed channeled top and bottom bars, and also carrying a screen, and friction reducing means interposed between the channeled bars and the casing bars I 5. An extensible'window screen construction including slidable frame sections, one

. of said sections having hollowtop and bot tom casing bars provided with slots opening toward each other, and a screen carried by said section at one side of said slots, the other of said sections having reversely disposed channeled top and bottom bars telescoping within said casing bars and also carrying a screen adapted to slide in the slots of the casing bars and slida-bly overlap with the screen carried thereby, and friction reducing balls interposed between the channeled bars and the casing bars.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

1 HAROLD A. ELDREDGE.

lVitnesses FRAncns H. VVoonwELL, CHARLES LADD.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

